1111109956105 has 4 divisors (see below), whose sum is σ = 1333331947332. Its totient is φ = 888887964880.

The previous prime is 1111109956097. The next prime is 1111109956123. The reversal of 1111109956105 is 5016599011111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 339677986761 + 771431969344 = 582819^2 + 878312^2 .

It is not a de Polignac number, because 1111109956105 - 2³ = 1111109956097 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111110995606 + ... + 111110995615.

It is an arithmetic number, because the mean of its divisors is an integer number (333332986833).

Almost surely, 2^{1111109956105} is an apocalyptic number.

It is an amenable number.

1111109956105 is a deficient number, since it is larger than the sum of its proper divisors (222221991227).

1111109956105 is an equidigital number, since it uses as much as digits as its factorization.

1111109956105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222221991226.

The product of its (nonzero) digits is 12150, while the sum is 40.

The spelling of 1111109956105 in words is "one trillion, one hundred eleven billion, one hundred nine million, nine hundred fifty-six thousand, one hundred five".